stam.griddata.triangulate_tracks

stam.griddata.triangulate_tracks(tracks, color='bp_rp', mag='mg')[source]

Compute the 2D Delaunay triangulation of the stellar track color-magnitude coordinates.

Parameters:

tracks (Table) – Stellar-track grid, as retrieved by stam.tracks.get_isomasses or stam.tracks.get_combined_isomasses.
xparam (str, optional) – x-axis parameter (usually the color of the stars, e.g. Gaia’s Gbp-Grp; default: “color”).
yparam (str, optional) – y-axis parameter (usually the absolute magnitude of the stars, e.g. Gaia’s M_G; same size as x; default: “absmag”).

Returns:

tri – 2D Delaunay triangulation of the stellar track grid.

Return type:

Delaunay object